I know virtually nothing about the Thai royal jewels, but it seems to me (from the photos) that there are at least 2 (if not 3) different fringes. I have always wonder if Queen Sirikit wore 2 different fringes, as it seems (to my eye) that the large fringe necklace is bigger than the fringe HM wore as a tiara. But perhaps I am imagining things!
I think that this is a question which will perplex us for a while. But I would love to see more discussion and photos to help us understand.